package com.sky.service.impl;


import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.EmployeeService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;


@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
         String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();
        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);
        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }
        //密码比对
        // 对前端传过来的铭文密码进行md5加密处理
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    public Result save(EmployeeDTO employeeDTO){
        Employee e1 = new Employee();
        // 对象属性拷贝
        BeanUtils.copyProperties(employeeDTO,e1);
        e1.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));
//        e1.setCreateTime(LocalDateTime.now());
//        e1.setUpdateTime(LocalDateTime.now());
//        e1.setUpdateUser((Long) BaseContext.getCurrentUser());
//        e1.setCreateUser((Long) BaseContext.getCurrentUser());
        e1.setStatus(StatusConstant.ENABLE);

        employeeMapper.insertUser(e1);
        return Result.success();
    }

    @Override
    public PageResult pageQuery(EmployeePageQueryDTO employeePageQueryDTO) {
        PageHelper.startPage(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize());
        Page<Employee> page = employeeMapper.queryPage(employeePageQueryDTO);
        long total = page.getTotal();
        return new PageResult(total,page);
    }

    @Override
    public void setStatus(Integer status, long id) {
        Employee emp = Employee.builder().status(status).id(id).build();
        employeeMapper.setStatus(emp);
    }


    @Override
    public void updateEmp(EmployeeDTO emp) {
        Employee e1 = new Employee();
        BeanUtils.copyProperties(emp,e1);
//        e1.setUpdateTime(LocalDateTime.now());
//        e1.setUpdateUser(BaseContext.getCurrentId());
        employeeMapper.setStatus(e1);
    }
    @Override
    public Employee getById(long id) {
       Employee e1 = employeeMapper.queryById(id);
       return e1;
    }
}
